Drill bit Proline 71230, solid metal, Ø12 mm, length 300 mm, 1 pc

Proline 71230 solid metal drill bit, Ø12 mm and 300 mm long, supplied as a single piece. The bit is designed for drilling metal and other hard materials where a straight shank and extended reach are required. It fits bench and hand drills and is intended for through-holes and deep drilling tasks that need a precise 12 mm diameter finish.

Advantages

The Proline 71230 offers a long 300 mm working length that enables drilling deep holes and reaching recessed positions without repositioning the workpiece. Its solid metal construction provides durability for industrial and professional applications. The straight shank ensures compatibility with standard drill chucks and stable mounting during operation. The geometry supports efficient chip evacuation for continuous drilling tasks in hard materials.

Suitable for

• Drilling through metal plates and structural components
• Deep-hole drilling where extended reach is needed
• Use in bench drill presses and portable hand drills
• Creating precise Ø12 mm holes for assembly and fastening

Key specifications

• Diameter: 12 mm
• Length: 300 mm
• Material: solid metal construction
• Shank type: straight shank
• Quantity: 1 piece

How to use

Select a drill or drill press compatible with a 12 mm straight shank and secure the Proline 71230 in the chuck. Mark the drilling point, use appropriate clamping for the workpiece, and set an appropriate rotational speed for the material being drilled. Apply steady axial pressure and allow the drill to cut without excessive force; periodically withdraw the bit to clear chips when drilling deep holes. Finish the hole with light passes if tight tolerance is required.

Usage recommendations

For best results, use cutting fluid or coolant when drilling metal to reduce heat and improve tool life. Match drill speed and feed to the material: lower speeds for harder metals and higher speeds for softer metals. Inspect the bit for wear or damage before use and replace when cutting performance degrades.